diff --git a/requirements.txt b/requirements.txt
index 50d9bf8..09aa4c3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,6 +8,6 @@ hypothesis==3.66.30
 parsimonious==0.8.1
 pytest==3.2.3
 pytest-cov==2.5.1
-pytest-flake8==0.9
+pytest-flake8==1.0.4
 pytest-sugar==0.9.1
 pytest-xdist==1.22.5